| -- C3A0004.A |
| -- |
| -- Grant of Unlimited Rights |
| -- |
| -- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687, |
| -- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained |
| -- unlimited rights in the software and documentation contained herein. |
| -- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making |
| -- this public release, the Government intends to confer upon all |
| -- recipients unlimited rights equal to those held by the Government. |
| -- These rights include rights to use, duplicate, release or disclose the |
| -- released technical data and computer software in whole or in part, in |
| -- any manner and for any purpose whatsoever, and to have or permit others |
| -- to do so. |
| -- |
| -- DISCLAIMER |
| -- |
| -- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR |
| -- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED |
| -- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE |
| -- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE |
| -- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A |
| -- PARTICULAR PURPOSE OF SAID MATERIAL. |
| --* |
| -- |
| -- OBJECTIVE: |
| -- Check that access to subprogram may be stored within array |
| -- objects, and that the access to subprogram can subsequently |
| -- be called. |
| -- |
| -- TEST DESCRIPTION: |
| -- Declare an access to procedure type in a package specification. |
| -- Declare an array of the access type. Declare three different |
| -- procedures that can be referred to by the access to procedure type. |
| -- |
| -- In the main program, build the array by dereferencing the access |
| -- value. |
| -- |
| -- |
| -- CHANGE HISTORY: |
| -- 06 Dec 94 SAIC ACVC 2.0 |
| -- |
| --! |
| |
| with Report; |
| |
| procedure C3A0004 is |
| |
| Left_Turn : Integer := 1; |
| |
| Right_Turn : Integer := 1; |
| |
| Center_Turn : Integer := 1; |
| |
| -- Type accesses to any procedure |
| type Action_Ptr is access procedure; |
| |
| -- Array of access to procedure |
| type Action_Array is array (Integer range <>) of Action_Ptr; |
| |
| |
| procedure Rotate_Left is |
| begin |
| Left_Turn := 2; |
| end Rotate_Left; |
| |
| |
| procedure Rotate_Right is |
| begin |
| Right_Turn := 3; |
| end Rotate_Right; |
| |
| |
| procedure Center is |
| begin |
| Center_Turn := 0; |
| end Center; |
| |
| |
| begin |
| |
| Report.Test ("C3A0004", "Check that access to subprogram may be " |
| & "stored within data structures, and that the " |
| & "access to subprogram can subsequently be called"); |
| |
| ------------------------------------------------------------------------ |
| |
| declare |
| Total_Actions : constant := 3; |
| Action_Sequence : Action_Array (1 .. Total_Actions); |
| |
| begin |
| |
| -- Build the action sequence |
| Action_Sequence := (Rotate_Left'Access, Center'Access, |
| Rotate_Right'Access); |
| |
| -- Assign actions by invoking subprogram designated by access value |
| for I in Action_Sequence'Range loop |
| Action_Sequence(I).all; |
| end loop; |
| |
| If Left_Turn /= 2 or Right_Turn /= 3 |
| or Center_Turn /= 0 then |
| Report.Failed ("Incorrect Action sequence result"); |
| end if; |
| |
| end; |
| |
| ------------------------------------------------------------------------ |
| |
| Report.Result; |
| |
| end C3A0004; |
| |